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| Cheapest flight | £45 | Cheapest price for a one-way flight between Cardiff with London found by our customers in the last 72 hours |
| High season | September | According to search data from our customers, September is the busiest time to fly from Cardiff to London |
| Best time to book | January | According to real data January is the most popular time to book a flight to London when departing from Cardiff |
| Airlines flying this route | Flybe, British Airways | Airline(s) with flights between Cardiff to London |
CWL Cardiff LON London 
CWL Cardiff LON London Trains are 40% more expensive in London than in Cardiff.
The average meal is 50% more expensive in London than in Cardiff.
A taxi in London costs roughly the same as in Cardiff.
Coffee is 2% more expensive in London than in Cardiff.
Flights from Cardiff to London involve a transfer and take around three and a half hours.
Flights usually connect at Edinburgh or Amsterdam.
With a similar climate to Cardiff, you can expect to pack a coat and good winter boots in the colder months and a light jacket and sunglasses in the summer.
Two airlines provide good connections between the Welsh and English capitals. These are also known for their great rates on airfares across Europe:
Opodo is your online travel agent, with powerful and fast tools for getting cheap flights between Cardiff and London. You'll also find many other fabulous destinations across the globe at great prices. Simply enter your cities and dates and you'll be presented with the cheapest airfare at the top. Keep browsing for different departure times and airlines, as well as last-minute offers. Opodo is the ideal resource for finding amazing value domestic flights, such as those between Cardiff and London, as well as cheap long-haul trips.
Cardiff Airport (CWL) is Wales' connection to the rest of the world, and getting there from the city centre is very simple, whether by public transport or taxi.
Find out how to transfer to and from the airport, which is about 12 miles from the city centre.
How to get to the airport:
Services: open 24 hours a day, free Wi-Fi access for two hours, a good selection of places to eat and shop, baby changing facilities, smoking areas outside the airport and near the departure lounges.
Flights originating in Cardiff will usually land in Heathrow or London City Airport. City is virtually in the heart of London already, while Heathrow offers many transfer options.
Heathrow Airport (LHR), 14 miles from central London, is the UK's biggest airport and a major international hub.
How to get to London:
Services: open 24 hours a day, unlimited free Wi-Fi access, a huge range of shops and places to eat, baby changing, showers, and outdoor smoking zones.
London City Airport (LCY) is right at the heart of London; it's easy to zip into the centre from here.
How to get to London from the airport:
Services: open 6:30am to 10:30pm on weekdays, 6:30am to 1pm on Saturdays and 12:30pm to 10:30pm on Sundays, open 9:00am to 10:30pm on bank holidays, closed on Christmas Day, unlimited free Wi-Fi, many choices for eating and shopping, baby changing facilities, outdoor smoking areas.